20984885

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{911}}^1$

素因数の和:1204

約数の個数: 16

約数和(自身を含む): 26790912

約数和(自身を除く): 5806027

約数列:

[1, 5, 17, 85, 271, 911, 1355, 4555, 4607, 15487, 23035, 77435, 246881, 1234405, 4196977, 20984885]

約数ペア:

[(1, 20984885), (5, 4196977), (17, 1234405), (85, 246881), (271, 77435), (911, 23035), (1355, 15487), (4555, 4607)]